Method and device for coating anticorrosion layer of anticorrosion prestressed steel strand

A technology of prestressed steel strand and coating method, which is applied to the device for coating liquid on the surface, coating, pretreatment surface, etc. problems such as uniformity, affecting product quality, etc., to achieve the effect of large range, excellent corrosion resistance, and product quality assurance

Inactive Publication Date: 2006-03-29
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is: during the anti-corrosion processing process of coating synthetic resin on each wire of the prestressed steel strand in the open state, the tension of the six side wires is uneven, the steel wires collide, and there are many faults caused by twisting. The bond between the layer and the steel wire matrix is ​​not strong, which affects the quality of the product

Method used

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  • Method and device for coating anticorrosion layer of anticorrosion prestressed steel strand
  • Method and device for coating anticorrosion layer of anticorrosion prestressed steel strand
  • Method and device for coating anticorrosion layer of anticorrosion prestressed steel strand

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Embodiment Construction

[0034] Below, in conjunction with accompanying drawing and the production process of anticorrosion prestressed steel strand, the feature of " coating method and device of the anticorrosion layer of anticorrosion prestressed steel strand " of the present invention is described further.

[0035] The production process of "anti-corrosion prestressed steel strand" of the present invention and the device used are as follows (see figure 1 ):

[0036] 1. Pre-treatment process: the common steel strand 2 uncoiled from the pay-off reel 1 is pre-treated with a pre-treatment device 3 for rust removal;

[0037] 2. Open the steel strands in sequence according to the predetermined length: the pre-treated steel strands are broken up through the conical top opening die 4, and the steel strands are continuously and sequentially opened under the action of the transition die 6 and the front expansion die 8 to untie;

[0038] 3. Clean the opened steel strands and air dry them in the open state; ...

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Abstract

A process for coating a prestressed twisted steel cable with anticorrosion layer includes untwisting by predefined length, washing, drying in air, regulating the length of central wire and the tightness of central wire and side wires, preheating, applying synthetic resin powder, thermal fusing, cooling, retwisting, cooling and winding. Its apparatus is composed of pre-treating unit, untwisting unit, regulator, preheater, coater and retwisting unit.

Description

1. Technical field: [0001] The invention relates to the technical field of processing prestressed steel strands, in particular to a production process and a device for applying anticorrosion treatment to steel strands. 2. Background technology: [0002] The anti-corrosion prestressed steel strand composed of a central wire and multiple side wires, and each center wire and side wires are coated with epoxy resin has long been on the market. There are various methods of applying anti-corrosion treatment. The main process All the steel strands are unfolded, so that the steel strands pass through the spraying device in an open state, and each wire in the open state is coated with synthetic resin powder, and then heated, cooled, and the side wires are twisted to the center wire again. ZL93108019.3 patent disclosed "prestressed steel twisted wire anti-rust coating film forming processing method and its device" is also one of them. However, in these methods, usually the six side wi...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): B05D1/12B05D3/00B05C5/04B05C9/08
Inventor方中予杨庆杨立中王建韬陈谦罗艺红杨金秀
OwnerLIUZHOU OVM MASCH CO LTD